Jar-closure.



G. H. WOMELSDORP.

JAR CLOSURE.

APPLICATION FILED JUNE 27, 1010.

Llflflfigl Patented July 28,19M

GEORGE H. WOMELSDORF, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO RENO' MANUFACTURING COMPANY, OF TION OF PENNSYLVANIA.

PHILADELPHIA, PENNSYLVANIA, A CORPORA- JAR-CLOSURE.

Specification of Letters Patent.

Patented July 28, 1914.

Application filed June 27, 1910. Serial No. $9,068.

To all 'whom it may concern Be it known that I, Gnonon H. WOMELS- noun, a citizen of the United States, residing in Philadelphia, fennsylvania, have inj from the interior thereof, and which shall be inexpensive to manufacture as well as of; such a composition as not todeterlorate with time.

I further desire to provide a jar closure or sealing device of such construction that when applied to a jar or other container substantially full of liquid it shall displace any air which might otherwise be confined between it and the top surface of said liquid.

It is also desired that the construction of the closure shall be such that one portion of K ring or closure shown in Fig. 1, and Fig. 4,

is a vertical section of a ring made of a 8111- gle sheet of material.

In the above drawings, 1 represents a glass jar having an exteriorly threaded neck 2 on which may be screwed a suitably threaded metallic cover 3, within whose top is confined the dglass or porcelain disk.

My improve closure consists of. a disk 5 having its edges 6 flanged andslightly flared and rovided with a compressible sealing ring Ipermanently held, either by some adhesive or by being made integral with the disk (as in Fig. 4), to the uppp iiloutslde edge of the flanged portion 6. ile the disk and its flange are made of any relatively compact pulp board or equivalent materlal such as finely ground cork board or ute, the

ring 7 is of relativel porous, loosely compacted and compressi le pulp which is first saturated with some substance as glycerin for maintaining it soft and pliable and with the disk 5, is thereafter coated and to some extent impregnated with a mixture of col lodion and castor oil. This coating is of such a nature as to effectually seal the glycerin within the ring 7 and at the same time make both it and the flanged disk impervious to moisture and air. While of course collodion might be; used alone, I have found that the castor oil or some other nondrying oil renders it more or less soft and and its flange are primarily valuable in 1 serving as a guide or centerin device for the ring 7 sothat in applying the device to a jar, this latter portion is necessarily centered upon the top edge of the neck 2 and is directly confined between it and the porcelain disk 4 when the cap 3 is applied. The screwing down of said cap prevents all leakage of liquid past the sealin ring owing to the substances with which 1t is coated and impregnated, and thus form's what is practically aperfect seal with the two surfaces between which it is mounted.

In some forms of jars the porcelain disk may be omitted so that the ring 7 makes its seal between the metallic cap 3 and the top edge of the jar neck. The flanged disk 5 then prevents all access of the material within the jar to the metal of the cap and thus prevents all corrosion of said metal and possible injury to the contents of the jar. Another advantage of the construction is due to the fact that the insertion of the flanged disk into the body of liquid in the jar when the ring is applied thereto, displaces any air bubbles which would otherwise be can ht between the cover and the surface of t e liquid; it being noted that the disk 5 should be plane or downwardlythis ring as shown at. 7 in Fig, '2, with a vertlcal outside edge.

The device as a whole may in some inwhich said ring is coated forms a tight permanent seal; it being understood that the joint between the ring and the flanges of the disk 5 is a tight one; there being either some adhesive or sealing material used .to join these two parts, or the ring may be forced onto the disk and the whole merely coated with the compound above described. 1

As shown in Fig. 4 ,f the ring is formed of a single sheet of'plllp 'board pressed into shape, although the material of which the ring ismade is originally of uniform thickness and made of loosely compacted material. I so operate on itthat the sealing portion-7 is unaltered as to its thickness while the disk 5 and its flange are compressed so as to be stifi "and relatively thin. As. betore the part 7' is preferably filled with material for keeping it soft and pliable and thereafter the-wholestructure is coated with collodion as above;

: I claim;- I 1 1. A sealing closure consisting of a disk of relatively compact stifi materialhaving an integral sealing portion permanently connected to it and consisting of loosely compacted material,

2. A sealing closure consisting of a disk of relatively compact stifif material having an integral sealing portion permanently connected to it and consisting of loosely com pacted material.v impregnated with a substance for maintaining it soft and pliable.

3. A sealing ring of loosely compacted material impregnated with glycerin and abatement a mixture of an oil and collocompacted material coated with a mixture 01E an oil and collodion.

' 5. A sealing cap for bottles, embodying an external clamping member and an integral internal packing member, said packing member having a relatively dense central portion and a relatively soft and elastic margin to form the. seat for the mofith of thejoottle.

6. A sealing cap for bottles, embodying an external clamping member and an mtegral internal packing member, said pack in member having a relatively dense and th1n center and an annular margin which Is relatively thick, soft and elastic to form the seat for the mouth of the bottle.

' 7, Arsealingcap for bottles, embodying an "external cup-shape metal cap and an 1nternal packing of compressed and bonded granulated cork, said packing having a relatively dense impervious center and an annul 1' margin which is melatively soft and elastic to form the seat for the moutlr of the bottle.

8.-A sealing capfor bottles, embodying an external cup-shaped sheet metal cap member and a molded granular packing member therein having a central depression in its face andan annular margin which is soft and elastic to form the seat for the mouthof the bottle.

In testimony whereofiJI have signed my name to this specification, in the presence of two subscribing witnesses.

GEORGE H. WOMELSDORF.

Witnesses:

WILLIAM E. BRADLEY, WM. A. Benn. 

